The story is about a little blue boy and his best friend, a little yellow boy, who live next door to each other. One day when the little blue boy goes to look for his friend, they embrace so tightly that they turn green. When they return home, their parents do not recognize them. The boys cry and turn back to their original colors. Their parents are then happy to see them and embrace, turning green again. They all understand what happened and spend the day playing together.